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    • 1. 发明授权
    • Power circuit including inrush current limiter, and integrated circuit
including the power circuit
    • 包括浪涌电流限制器的电源电路和包括电源电路的集成电路
    • US6150800A
    • 2000-11-21
    • US395971
    • 1999-09-15
    • Masayoshi KinoshitaShiro SakiyamaJun KajiwaraKatsuji SatomiHiroo YamamotoKatsuhiro Ootani
    • Masayoshi KinoshitaShiro SakiyamaJun KajiwaraKatsuji SatomiHiroo YamamotoKatsuhiro Ootani
    • G05F1/56G05F1/573G05F1/575H02H9/02G05F1/40
    • G05F1/573G05F1/575Y10S323/908
    • A power circuit including means for preventing the generation of an inrush current during the power circuit's initial operation without increasing the size of the power circuit is described. The power circuit comprises an output transistor for supplying a current from a power supply to an output terminal, and a differential amplifier for controlling the current supplied by the output transistor in such a manner as to regulate a voltage at the output terminal based on a preset reference voltage. A limiting transistor is provided as a source follower on a current path at the output stage of the differential amplifier. The gate potential of the output transistor is controlled using the source potential of the limiting transistor. Before the power circuit starts to operate, an operation controller charges a capacitor to control the gate potential of the limiting transistor so that during the initial operation of the power circuit, the capacitor is discharged by using a current source. Accordingly, during the initial operation of the power circuit, the gate potential of the limiting transistor gradually decreases while the gate-source voltage of the output transistor gradually increases. As a result, the generation of the inrush current can be suppressed.
    • 描述了一种电源电路,其包括用于在电源电路的初始操作期间防止产生浪涌电流的装置,而不增加电源电路的尺寸。 电源电路包括用于从电源向输出端子提供电流的输出晶体管,以及差分放大器,用于根据预设的方式控制由输出晶体管提供的电流,以调节输出端子处的电压 参考电压。 在差分放大器的输出级的电流路径上提供限制晶体管作为源极跟随器。 使用限制晶体管的源极电位来控制输出晶体管的栅极电位。 在电源电路开始工作之前,操作控制器对电容器充电以控制限流晶体管的栅极电位,使得在电源电路的初始操作期间,通过使用电流源来放电电容器。 因此,在电源电路的初始动作期间,限制晶体管的栅极电位逐渐降低,同时输出晶体管的栅极 - 源极电压逐渐增大。 结果,可以抑制浪涌电流的产生。
    • 4. 发明授权
    • Cell library database and design aiding system
    • 细胞库数据库和设计辅助系统
    • US06490715B1
    • 2002-12-03
    • US09550352
    • 2000-04-14
    • Toshiyuki MoriwakiShiro SakiyamaHiroo YamamotoJun KajiwaraMasayoshi Kinoshita
    • Toshiyuki MoriwakiShiro SakiyamaHiroo YamamotoJun KajiwaraMasayoshi Kinoshita
    • G06F1750
    • G06F17/5022
    • A cell library database includes function information of standard cells which are basic circuits forming a logical device, each of the standard cell comprising at least one of power supply terminal as logical terminals, the function information of the standard cell containing logical information or delay information of the power supply terminal relative to an output terminal, or function information of macro cells which are functional circuits forming a logical device, each of the macro cell comprising at least one of power supply terminals as logical terminals, the function information of the macro cell containing logical information or delay information of said power supply terminals relative to an output terminal. A design aiding system uses the cell library database to execute logical simulation, etc.
    • 单元库数据库包括作为形成逻辑装置的基本电路的标准单元的功能信息,标准单元中的每一个包括作为逻辑端的电源端子中的至少一个,包含逻辑信息或延迟信息的标准单元的功能信息 所述电源端子相对于输出端子,或作为形成逻辑装置的功能电路的宏电池的功能信息,所述宏电池单元包括作为逻辑端子的电源端子中的至少一个,所述宏单元的功能信息包含 所述电源端子相对于输出端子的逻辑信息或延迟信息。 设计辅助系统使用单元库数据库执行逻辑仿真等。